H.245 Message Handling


Data Structures
struct	H245Message
	Defines the H.245 message structure. More...
Functions
EXTERN int	ooCreateH245Message (H245Message **msg, int type)
	Creates an outgoing H245 message of the type specified by the type argument for the Application context.
EXTERN int	ooFreeH245Message (struct OOH323CallData call, H245Message pmsg)
	Frees up the memory used by the H245 message.
EXTERN int	ooSendH245Msg (struct OOH323CallData call, H245Message msg)
	This function is used to enqueue an H.245 message into an outgoing queue for the call.
EXTERN int	ooGetOutgoingH245Msgbuf (struct OOH323CallData call, ASN1OCTET msgbuf, int len, int msgType)
	This function is used to retrieve an H.245 message enqueued in the outgoing queue.
EXTERN int	ooSendTermCapMsg (struct OOH323CallData *call)
	This function is used to send out a terminal capability set message.
EXTERN ASN1UINT	ooGenerateStatusDeterminationNumber ()
	This function is used to generate a random status determination number for MSD procedure.
EXTERN int	ooHandleMasterSlave (struct OOH323CallData call, void pmsg, int msgType)
	This fuction is used to handle received MasterSlaveDetermination procedure messages.
EXTERN int	ooSendMasterSlaveDetermination (struct OOH323CallData *call)
	This function is used to send MSD message.
EXTERN int	ooSendMasterSlaveDeterminationAck (struct OOH323CallData call, char status)
	This function is used to send a MasterSlaveDeterminationAck message.
EXTERN int	ooSendMasterSlaveDeterminationReject (struct OOH323CallData *call)
	This function is used to send a MasterSlaveDeterminationReject message.
EXTERN int	ooHandleMasterSlaveReject (struct OOH323CallData call, H245MasterSlaveDeterminationReject reject)
	This function is used to handle MasterSlaveReject message.
EXTERN int	ooHandleOpenLogicalChannel (struct OOH323CallData call, H245OpenLogicalChannel olc)
	This function is used to handle received OpenLogicalChannel message.
EXTERN int	ooHandleOpenLogicalChannel_helper (struct OOH323CallData call, H245OpenLogicalChannel olc)
	This is a helper function used to handle a received OpenLogicalChannel message.
int	ooSendOpenLogicalChannelReject (struct OOH323CallData *call, ASN1UINT channelNum, ASN1UINT cause)
	This function is used to build and send OpenLogicalChannelReject message.
EXTERN int	ooOnReceivedOpenLogicalChannelAck (struct OOH323CallData call, H245OpenLogicalChannelAck olcAck)
	This function is used to handle a received OpenLogicalChannelAck message.
int	ooOnReceivedOpenLogicalChannelRejected (struct OOH323CallData call, H245OpenLogicalChannelReject olcRejected)
	This function is used to handle the received OpenLogicalChannelReject message.
EXTERN int	ooSendEndSessionCommand (struct OOH323CallData *call)
	This message is used to send an EndSession command.
EXTERN int	ooHandleH245Command (struct OOH323CallData call, H245CommandMessage command)
	This function is used to handle a received H245Command message.
EXTERN int	ooOnReceivedUserInputIndication (OOH323CallData call, H245UserInputIndication indication)
	This function is used to handle a received UserInput Indication message.
EXTERN int	ooOnReceivedTerminalCapabilitySetAck (struct OOH323CallData *call)
	This function is called on receiving a TreminalCapabilitySetAck message.
EXTERN int	ooCloseAllLogicalChannels (struct OOH323CallData *call)
	This function is called to close all the open logical channels.
EXTERN int	ooSendCloseLogicalChannel (struct OOH323CallData call, ooLogicalChannel logicalChan)
	This function is used to send out a CloseLogicalChannel message for a particular logical channel.
EXTERN int	ooOnReceivedCloseLogicalChannel (struct OOH323CallData call, H245CloseLogicalChannel clc)
	This function is used to process a received closeLogicalChannel request.
EXTERN int	ooOnReceivedCloseChannelAck (struct OOH323CallData call, H245CloseLogicalChannelAck clcAck)
	This function is used to process a received CloseLogicalChannelAck message.
EXTERN int	ooHandleH245Message (struct OOH323CallData call, H245Message pmsg)
	This function is used to handle received H245 message.
EXTERN int	ooOnReceivedTerminalCapabilitySet (struct OOH323CallData call, H245Message pmsg)
	This function is used to process received TCS message.
EXTERN int	ooH245AcknowledgeTerminalCapabilitySet (struct OOH323CallData *call)
	This function is used to send a TCSAck message to remote endpoint.
EXTERN int	ooOpenLogicalChannels (struct OOH323CallData *call)
	This function is used to start OpenLogicalChannel procedure for all the channels to be opened for the call.
EXTERN int	ooOpenLogicalChannel (struct OOH323CallData *call, enum OOCapType capType)
	This function is used to send OpenLogicalChannel message for audio/video channel.
EXTERN int	ooOpenChannel (struct OOH323CallData call, ooH323EpCapability epCap)
	This function is used to build and send OpenLogicalChannel message using capability passed as parameter.
EXTERN int	ooSendH245UserInputIndication_alphanumeric (OOH323CallData call, const char data)
	This function is used to send dtmf digits as user input indication message contating alphanumeric string.
EXTERN int	ooSendH245UserInputIndication_signal (OOH323CallData call, const char data)
	This function is used to send dtmf digits as user input indication message contating dtmf signal type.
EXTERN int	ooSendRequestCloseLogicalChannel (struct OOH323CallData call, ooLogicalChannel logicalChan)
	This function is used to request a remote end point to close a logical channel.
int	ooSendRequestChannelCloseRelease (struct OOH323CallData *call, int channelNum)
	This function is used to send a RequestChannelCloseRelease message when the corresponding timer has expired.
EXTERN int	ooOnReceivedRequestChannelClose (struct OOH323CallData call, H245RequestChannelClose rclc)
	This function handles the received RequestChannelClose message, verifies that the requested channel is forward channel.
int	ooOnReceivedRequestChannelCloseReject (struct OOH323CallData call, H245RequestChannelCloseReject rccReject)
	This function is used to handle a received RequestChannelCloseReject response message.
int	ooOnReceivedRequestChannelCloseAck (struct OOH323CallData call, H245RequestChannelCloseAck rccAck)
	This function is used to handle a received RequestChannelCloseAck response message.
EXTERN int	ooBuildFastStartOLC (struct OOH323CallData call, H245OpenLogicalChannel olc, ooH323EpCapability epCap, OOCTXT pctxt, int dir)
	Builds an OLC for faststart with an audio/video capability passed as parameter.
EXTERN int	ooPrepareFastStartResponseOLC (OOH323CallData call, H245OpenLogicalChannel olc, ooH323EpCapability epCap, OOCTXT pctxt, int dir)
	Prepares a faststart response olc from the olc received in SETUP message.
EXTERN int	ooEncodeH245Message (struct OOH323CallData call, H245Message ph245Msg, ASN1OCTET *msgbuf, size_t size)
	This function is used to encode an H245 message and return encoded data into the buffer passed as a parameter to the function.
int	ooSendMasterSlaveDeterminationRelease (struct OOH323CallData *call)
	This function is used to send a master-slave determination release message.
int	ooSendTerminalCapabilitySetReject (struct OOH323CallData *call, int seqNo, ASN1UINT cause)
	This function is used to send a terminal capability set reject message to the remote endpoint.
int	ooSendTerminalCapabilitySetRelease (struct OOH323CallData *call)
	This function is used to send a TerminalCapabilitySetRelease message after capability exchange timer has expired.
int	ooGetIpPortFromH245TransportAddress (OOH323CallData call, H245TransportAddress h245Address, char ip, int port)
	This is an helper function used to extract ip address and port info from H245TransportAddress structure.
int	ooMSDTimerExpired (void *data)
	This is a callback function for handling an expired master-slave determination timer.
int	ooTCSTimerExpired (void *data)
	This is a callback function for handling an expired capability exchange timer.
int	ooOpenLogicalChannelTimerExpired (void *pdata)
	This is a callback function for handling an expired OpenLogicalChannel timer.
int	ooCloseLogicalChannelTimerExpired (void *pdata)
	This is a callback function for handling an expired CloseLogicalChannel timer.
int	ooRequestChannelCloseTimerExpired (void *pdata)
	This is a callback function for handling an expired RequestChannelClose timer.
int	ooSessionTimerExpired (void *pdata)
	This is a callback function for handling an expired EndSession timer.

Function Documentation

EXTERN int ooCreateH245Message	(	H245Message **	msg,
		int	type
	)

Creates an outgoing H245 message of the type specified by the type argument for the Application context.

Parameters:

	msg	A pointer to pointer to message which will be assigned to allocated memory.
	type	Type of the message to be created. (Request/Response/Command/Indication)

Returns:: Completion status of operation: 0 (OO_OK) = success, negative return value is error.

EXTERN int ooFreeH245Message	(	struct OOH323CallData *	call,
		H245Message *	pmsg
	)

Frees up the memory used by the H245 message.

Parameters:

	call	Handle to the call
	pmsg	Pointer to an H245 message structure.

Returns:: OO_OK, on success. OO_FAILED, on failure

EXTERN int ooSendH245Msg	(	struct OOH323CallData *	call,
		H245Message *	msg
	)

This function is used to enqueue an H.245 message into an outgoing queue for the call.

Parameters:

	call	Pointer to call for which message has to be enqueued.
	msg	Pointer to the H.245 message to be sent.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooGetOutgoingH245Msgbuf	(	struct OOH323CallData *	call,
		ASN1OCTET *	msgbuf,
		int *	len,
		int *	msgType
	)

This function is used to retrieve an H.245 message enqueued in the outgoing queue.

Parameters:

	call	Pointer to the call for which message has to be retrieved.
	msgbuf	Pointer to a buffer in which the message will be returned.
	len	Pointer to an int variable which will contain length of the message data after returning.
	msgType	Pointer to an int variable, which will contain message type on return from the function.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooSendTermCapMsg ( struct OOH323CallData * call )

This function is used to send out a terminal capability set message.

Parameters:

call

Pointer to a call for which TerminalCapabilitySet message will be sent.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN ASN1UINT ooGenerateStatusDeterminationNumber ( )

This function is used to generate a random status determination number for MSD procedure.

Returns:: Generated status determination number.

EXTERN int ooHandleMasterSlave	(	struct OOH323CallData *	call,
		void *	pmsg,
		int	msgType
	)

This fuction is used to handle received MasterSlaveDetermination procedure messages.

Parameters:

	call	Pointer to the call for which a message is received.
	pmsg	Pointer to MSD message
	msgType	Message type indicating whether received message is MSD, MSDAck, MSDReject etc...

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooSendMasterSlaveDetermination ( struct OOH323CallData * call )

This function is used to send MSD message.

Parameters:

call

Pointer to call for which MasterSlaveDetermination has to be sent.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooSendMasterSlaveDeterminationAck	(	struct OOH323CallData *	call,
		char *	status
	)

This function is used to send a MasterSlaveDeterminationAck message.

Parameters:

	call	Pointer to call for which MasterSlaveDeterminationAck has to be sent.
	status	Result of the determination process(Master/Slave as it applies to remote endpoint)

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooSendMasterSlaveDeterminationReject ( struct OOH323CallData * call )

This function is used to send a MasterSlaveDeterminationReject message.

Parameters:

call

Pointer to call for which message is to be sent.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooHandleMasterSlaveReject	(	struct OOH323CallData *	call,
		H245MasterSlaveDeterminationReject *	reject
	)

This function is used to handle MasterSlaveReject message.

If number of retries is less than max allowed, then it restarts the MasterSlaveDetermination procedure.

Parameters:

	call	Handle to the call for which MasterSlaveReject is received.
	reject	Poinetr to the received reject message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooHandleOpenLogicalChannel	(	struct OOH323CallData *	call,
		H245OpenLogicalChannel *	olc
	)

This function is used to handle received OpenLogicalChannel message.

Parameters:

	call	Pointer to call for which OpenLogicalChannel message is received.
	olc	Pointer to the received OpenLogicalChannel message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooHandleOpenLogicalChannel_helper	(	struct OOH323CallData *	call,
		H245OpenLogicalChannel *	olc
	)

This is a helper function used to handle a received OpenLogicalChannel message.

It builds an OpenLogicalChannelAck message and sends it.

Parameters:

	call	Pointer to cll for which OLC was received.
	olc	The received OpenLogicalChannel message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

int ooSendOpenLogicalChannelReject	(	struct OOH323CallData *	call,
		ASN1UINT	channelNum,
		ASN1UINT	cause
	)

This function is used to build and send OpenLogicalChannelReject message.

Parameters:

	call	Pointer to call for which OLCReject has to be sent.
	channelNum	LogicalChannelNumber to be rejected.
	cause	Cause of rejection.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooOnReceivedOpenLogicalChannelAck	(	struct OOH323CallData *	call,
		H245OpenLogicalChannelAck *	olcAck
	)

This function is used to handle a received OpenLogicalChannelAck message.

Parameters:

	call	Pointer to call for which OLCAck is received
	olcAck	Pointer to received olcAck message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

int ooOnReceivedOpenLogicalChannelRejected	(	struct OOH323CallData *	call,
		H245OpenLogicalChannelReject *	olcRejected
	)

This function is used to handle the received OpenLogicalChannelReject message.

Parameters:

	call	Handle to the call for which the message is received.
	olcRejected	Pointer to received OpenLogicalChannelReject message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooSendEndSessionCommand ( struct OOH323CallData * call )

This message is used to send an EndSession command.

It builds a EndSession command message and queues it into the calls outgoing queue.

Parameters:

call

Pointer to call for which EndSession command has to be sent.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooHandleH245Command	(	struct OOH323CallData *	call,
		H245CommandMessage *	command
	)

This function is used to handle a received H245Command message.

Parameters:

	call	Pointer to call for which an H245Command is received.
	command	Pointer to a command message.

Returns:: OO_OK, on success. OO_FAILED, on failure

EXTERN int ooOnReceivedUserInputIndication	(	OOH323CallData *	call,
		H245UserInputIndication *	indication
	)

This function is used to handle a received UserInput Indication message.

It extracts the dtmf received through user-input message and calls endpoints onReceivedDTMF callback function, if such a function is registered by the endpoint.

Parameters:

	call	Handle to the call for which user-input indication message is received.
	indication	Handle to the received user-input indication message.

Returns:: OO_OK, on success; OO_FAILED, on failure.

EXTERN int ooOnReceivedTerminalCapabilitySetAck ( struct OOH323CallData * call )

This function is called on receiving a TreminalCapabilitySetAck message.

If the MasterSlaveDetermination process is also over, this function initiates the process of opening logical channels.

Parameters:

call

Pointer to call for which TCSAck is received.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooCloseAllLogicalChannels ( struct OOH323CallData * call )

This function is called to close all the open logical channels.

It sends CloseLogicalChannel message for all the forward channels and sends RequestCloseLogicalChannel message for all the reverse channels.

Parameters:

call

Pointer to call for which logical channels have to be closed.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooSendCloseLogicalChannel	(	struct OOH323CallData *	call,
		ooLogicalChannel *	logicalChan
	)

This function is used to send out a CloseLogicalChannel message for a particular logical channel.

Parameters:

	call	Pointer to a call, to which logical channel to be closed belongs.
	logicalChan	Pointer to the logical channel to be closed.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooOnReceivedCloseLogicalChannel	(	struct OOH323CallData *	call,
		H245CloseLogicalChannel *	clc
	)

This function is used to process a received closeLogicalChannel request.

It closes the logical channel and removes the logical channel entry from the list. It also, sends closeLogicalChannelAck message to the remote endpoint.

Parameters:

	call	Pointer to call for which CloseLogicalChannel message is received.
	clc	Pointer to received CloseLogicalChannel message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooOnReceivedCloseChannelAck	(	struct OOH323CallData *	call,
		H245CloseLogicalChannelAck *	clcAck
	)

This function is used to process a received CloseLogicalChannelAck message.

It closes the channel and removes it from the list of active logical channels.

Parameters:

	call	Pointer to call for which CLCAck message is received.
	clcAck	Pointer to the received CloseLogicalChannelAck message.

Returns:: OO_OK, on success. OO_FAILED, on failure

EXTERN int ooHandleH245Message	(	struct OOH323CallData *	call,
		H245Message *	pmsg
	)

This function is used to handle received H245 message.

Based on the type of message received, it calls helper functions to process those messages.

Parameters:

	call	Pointer to call for which a message is received.
	pmsg	Pointer to the received H245 message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooOnReceivedTerminalCapabilitySet	(	struct OOH323CallData *	call,
		H245Message *	pmsg
	)

This function is used to process received TCS message.

It builds TCSAck message and queues it into the calls outgoing queue. Also, starts Logical channel opening procedure if TCS and MSD procedures have finished.

Parameters:

	call	Pointer to call for which TCS is received.
	pmsg	Pointer to the received message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooH245AcknowledgeTerminalCapabilitySet ( struct OOH323CallData * call )

This function is used to send a TCSAck message to remote endpoint.

Parameters:

call

Pointer to call on which TCSAck has to be sent.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooOpenLogicalChannels ( struct OOH323CallData * call )

This function is used to start OpenLogicalChannel procedure for all the channels to be opened for the call.

Parameters:

call

Pointer to call for which logical channels have to be opened.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooOpenLogicalChannel	(	struct OOH323CallData *	call,
		enum OOCapType	capType
	)

This function is used to send OpenLogicalChannel message for audio/video channel.

Parameters:

	call	Pointer to call for which channel has to be opened.
	capType	Type of media channel.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooOpenChannel	(	struct OOH323CallData *	call,
		ooH323EpCapability *	epCap
	)

This function is used to build and send OpenLogicalChannel message using capability passed as parameter.

Parameters:

	call	Pointer to call for which OpenLogicalChannel message has to be built.
	epCap	Pointer to capability

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooSendH245UserInputIndication_alphanumeric	(	OOH323CallData *	call,
		const char *	data
	)

This function is used to send dtmf digits as user input indication message contating alphanumeric string.

Parameters:

	call	Handle to the call for which dtmf has to be sent.
	data	DTMF data

Returns:: OO_OK, on success; OO_FAILED, on failure.

EXTERN int ooSendH245UserInputIndication_signal	(	OOH323CallData *	call,
		const char *	data
	)

This function is used to send dtmf digits as user input indication message contating dtmf signal type.

Parameters:

	call	Handle to the call for which dtmf has to be sent.
	data	DTMF data

Returns:: OO_OK, on success; OO_FAILED, on failure.

EXTERN int ooSendRequestCloseLogicalChannel	(	struct OOH323CallData *	call,
		ooLogicalChannel *	logicalChan
	)

This function is used to request a remote end point to close a logical channel.

Parameters:

	call	Pointer to call for which the logical channel has to be closed.
	logicalChan	Pointer to the logical channel structure which needs to be closed.

Returns:: OO_OK, on success. OO_FAILED, on failure.

int ooSendRequestChannelCloseRelease	(	struct OOH323CallData *	call,
		int	channelNum
	)

This function is used to send a RequestChannelCloseRelease message when the corresponding timer has expired.

Parameters:

	call	Handle to the call
	channelNum	Channel number.

Returns:: OO_OK, on success. OO_FAILED, otherwise.

EXTERN int ooOnReceivedRequestChannelClose	(	struct OOH323CallData *	call,
		H245RequestChannelClose *	rclc
	)

This function handles the received RequestChannelClose message, verifies that the requested channel is forward channel.

It sends an acknowledgement for the message followed by CloseLogicalChannel message.

Parameters:

	call	Pointer to the call for which RequestChannelClose is received.
	rclc	Pointer to the received message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

int ooOnReceivedRequestChannelCloseReject	(	struct OOH323CallData *	call,
		H245RequestChannelCloseReject *	rccReject
	)

This function is used to handle a received RequestChannelCloseReject response message.

Parameters:

	call	Handle to the call.
	rccReject	Pointer to the received reject response message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

int ooOnReceivedRequestChannelCloseAck	(	struct OOH323CallData *	call,
		H245RequestChannelCloseAck *	rccAck
	)

This function is used to handle a received RequestChannelCloseAck response message.

Parameters:

	call	Handle to the call.
	rccAck	Pointer to the received ack response message.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooBuildFastStartOLC	(	struct OOH323CallData *	call,
		H245OpenLogicalChannel *	olc,
		ooH323EpCapability *	epCap,
		OOCTXT *	pctxt,
		int	dir
	)

Builds an OLC for faststart with an audio/video capability passed as parameter.

Parameters:

	call	Handle to call for which OLC has to be built.
	olc	Pointer to an OLC structure which will be populated.
	epCap	Pointer to the capability which will be used to build OLC.
	pctxt	Pointer to an OOCTXT structure which will be used to allocate additional memory for OLC.
	dir	Direction of OLC

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooPrepareFastStartResponseOLC	(	OOH323CallData *	call,
		H245OpenLogicalChannel *	olc,
		ooH323EpCapability *	epCap,
		OOCTXT *	pctxt,
		int	dir
	)

Prepares a faststart response olc from the olc received in SETUP message.

This function just changes the mediaChannel and mediaControl channel part of the olc received in SETUP.

Parameters:

	call	Handle to call for which OLC has to be built.
	olc	Pointer to an received OLC structure.
	epCap	Pointer to the capability which will be used for this channel.
	pctxt	Pointer to an OOCTXT structure which will be used to allocate additional memory for OLC.
	dir	Direction of channel OORX, OOTX etc.

Returns:: OO_OK, on success. OO_FAILED, on failure.

EXTERN int ooEncodeH245Message	(	struct OOH323CallData *	call,
		H245Message *	ph245Msg,
		ASN1OCTET *	msgbuf,
		size_t	size
	)

This function is used to encode an H245 message and return encoded data into the buffer passed as a parameter to the function.

Parameters:

	call	Handle to the call
	ph245Msg	Handle to the message to be encoded.
	msgbuf	buffer in which encoded message will be returned.
	size	Size of the buffer.

Returns:: OO_OK, on success. OO_FAILED, on failure

int ooSendMasterSlaveDeterminationRelease ( struct OOH323CallData * call )

This function is used to send a master-slave determination release message.

Parameters:

call

Handle to call, for which MSDRelease message has to be sent.

Returns:: OO_OK, on success. OO_FAILED, on failure.

int ooSendTerminalCapabilitySetReject	(	struct OOH323CallData *	call,
		int	seqNo,
		ASN1UINT	cause
	)

This function is used to send a terminal capability set reject message to the remote endpoint.

Parameters:

	call	Handle to the call for which reject message has to be sent.
	seqNo	Sequence number of the TCS message to be rejected.
	cause	Cause for rejecting a TCS message.

Returns:: OO_OK, on success; OO_FAILED, otherwise.

int ooSendTerminalCapabilitySetRelease ( struct OOH323CallData * call )

This function is used to send a TerminalCapabilitySetRelease message after capability exchange timer has expired.

Parameters:

call

Handle to call for which release message has to be sent.

Returns:: OO_OK, on success; OO_FAILED, on failure.

int ooGetIpPortFromH245TransportAddress	(	OOH323CallData *	call,
		H245TransportAddress *	h245Address,
		char *	ip,
		int *	port
	)

This is an helper function used to extract ip address and port info from H245TransportAddress structure.

Parameters:

	call	Handle to associated call.
	h245Address	Handle to H245TransportAddress structure from which information has to be extracted.
	ip	Pointer to buffer in which ip address will be returned. Make sure that buffer has sufficient length.
	port	Pointer to integer in which port number will be returned.

Returns:: OO_OK, on success. OO_FAILED, on failure.

int ooMSDTimerExpired ( void * data )

This is a callback function for handling an expired master-slave determination timer.

Parameters:

data